The ArcXML Programmer's Reference Guide and supporting files are installed during a typical setup and are also located in the documentation directory on the ArcIMS CD-ROM.
On Windows: <ArcIMS Installation Directory>\Documentation\ArcXML_Guide
On Linux and UNIX: $AIMSHOME/Documentation/ArcXML_Guide
You will find the following documents in this directory:
ArcXML_Reference.htm: ArcXML Programmer's Reference Guide in WebHelp format.
ArcXMLGuide.pdf: ArcXML Programmer's Reference Guide in PDF format.
ArcXml.dtd: An updated DTD to use with ArcIMS 4.0.1.
Sample_Data directory: contains shapefiles commonly used with samples throughout the guide.